Hadestown is poetry, not prose, as its creators—director Rachel Chavkin and composer Anaïs Mitchell—will tell you. The musical, which is sung through, is an interpretation and theatrical translation of the myths of Orpheus and Eurydice and Persephone and Hades. It has been many years in the making. During each iteration the creative team made major changes and kept working on shaping the delicate piece, which is now on Broadway at the Walter Kerr. We speak with Rachel and Anaïs about the development process, staging poetry, finding the specificity in myth, and more.